Question about 2004 Mercedes-Benz C230 Kompressor

1 Answer

Explain how the combination egr valve on 2004 mercedes benz c230 compressor works

How does EGR valve work

Posted by on


1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • Mercedes-Benz Master
  • 2,210 Answers

Try for a merc answer

Posted on Nov 18, 2014


6 Suggested Answers

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

  • 7 Answers

SOURCE: Ballpark price on 2007 Mercedes Benz C230 Maintenance B

The dealer near me charges $365 for a 4-cyl, $395 for a 6/8 cyl, or $425 for a 12-cyl. The only actual repair/maintenance you get for that price is an oil change (with Mobil1 and the MB filter, which are CRITICAL, ~$120 on its own) and tire rotation. This makes a lot of people think it's a scam, but really, it's a little steep, but definitely worth doing. The rest of the service consists of a massive inspection of your vehicle covering the following items.

-- Fluid levels
-- Tire tread/pressure/wheel condition
-- Air filter (inc. clean out housing)
-- Cabin air filter (inc. clean out housing)
-- Lubricate sunroof rails, locks, hinges, and seals on body.
-- Drive belt and tensioner
-- HVAC system operation
-- Instruments, cruise control
-- Wipers/washers/lights/horn
-- Windows/sunroof operation
-- Hoses
-- Transmission fluid
-- Brakes
-- Chassis/suspension
-- Driveshaft, inc. flex discs
-- Road test
-- Reset maintenance light

This is actually pretty essential to do, despite seeming like a lot of money for not much work. I have very rarely done one without catching a few things that the customer needs, and often it was a problem that would have gotten far worse had it been left to its own.

Posted on Feb 22, 2009

  • 79865 Answers

SOURCE: Mercedes-Benz Transmission Fluid question

the transmission on your MB is sealed with no way to check the trans fluid level,(no dipstick provided for) that is why the report says "sealed". MB did this to stop customers from overfilling there transmissions, which can cause severe damage if not done properly at the correct fluid temp, this requires special test scan tools.

Posted on Mar 30, 2009

  • 19 Answers

SOURCE: How do you reset c230 2007 mercedes benz resetting

Try this, it is the procedure for resetting the ASSIST computer on many Mercs
1...Turn Key to position No:2 in the ignition / steering lock and immediately press AND Hold the button "000.0" (the trip reset button) TWICE within the space of 1 (one) second.

2…Turn the key to position No: 0 in the ignition / steering lock. Then release the button.
3...Press AND Hold the button "000.0" (the trip reset button) and turn Key to position No:2 in the ignition / steering lock. Keep button pressed
After about 10 seconds
the service indicator will reset and an acoustic signal may briefly sound
That should do it....Good Luck…...Let me know if it works?

Posted on Jul 08, 2009

  • 203 Answers


I thought they where either on the side of the core support(follow the wire harness and it should go to the relay). If not remove the fuse box lid and then take out the screws retaining the lid housing and you will find a series of relays. There will be one for high speed (engine uses this when temp. is to high) the other is a low speed relay(this is the climate control aux. fan relay) They may have fuses on top of them I know the older models did. I hope I have been helpful.

Posted on Sep 09, 2009

  • 10865 Answers

SOURCE: cigarette lighter in mercedes Benz C230 does not

hello. Begin by checking the fuse for this lighter. Chances are that is where the problem lies. Other wise it may be the unit itself which is easy to repair. If you need to replace the unit just go to the auto parts store and get the correct one for your car. It will include step by step directions. Joe

ps kindly rate my answer as helpful. ty

Posted on Feb 19, 2010

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:


EGR Exhaust Gas Recirculation valve

1.6) EGR - Exhaust Gas Recirculation valve (actuator)

What is it? This is a device that reduces engine emissions of nitric oxides by allowing a measured amount of exhaust gas to re-enter the intake manifold and mix with the air prior to entering the cylinders. The EGR can be vacuum (older types) or electrically driven (modern) or a hybrid combination of both (intermediate age). Adding inert exhaust gas to the intake charge artificially enriches the fuel air mix (by diluting the air) and thereby reduces ignition temperatures associated with lean running conditions

Where is it located? The EGR is associated with the intake manifold. The EGR is sited at a point of contact with both the exhaust and intake manifolds. If the exhaust manifold is remote to the inlet manifold, for example onthe other side of the engine, an exhaust feed pipe leading from the exhaustmanifold to the EGR is provided.

How does it work? Generally intake manifold vacuum acting on a diaphragm draws up on a pintle valve to open a connection between a (usually round) entry port for the exhaust gases and an exit port (usually rectangular) to the intake manifold. The opening of some modern EGR valves iscompletely under the (ECU) control of an electrical motor/solenoid. Since an open EGR port effectively acts as a vacuum leak in the inlet manifold leading to potential starting and idling difficulties, the EGR valve operation is often impeded by an electrical over-ride at cold/start-up until the engine reaches running temperature and high revs. The ECU takes signals from the coolant temperature sensor to determine when the engine is hot before allowing the EGR to function. In some cases, a differential pressurefeedback exhaust (DPFE) sensor, connected to pipes on the exhaust feed to the EGR, informs the ECU when and by how much the EGR should be open.

NEXT 1.6b) EGR faults and how to fix

on Jul 15, 2011 | Mercedes-Benz E-Class Cars & Trucks

1 Answer

Mercedes benz e 320 1998 model engine light code p0400

code p0400 refers to exhaust gas recirculation(EGR) system---flow malfunction.===causes---hose leak/blockage--basic setting not carried out (if applicable)---wiring---EGR valve ---EGR solenoid---ECM
check out the valve and solenoid.

Apr 29, 2014 | 2005 Mercedes-Benz Mercedes Benz E320 Cdi

1 Answer

How to repair a komprosser unit on a mercedes c230 1996

compressor repair is a specialist job. Either get new, secondhand or recon.
Not alot to actually go wrong, do you mean its just not working?

Mar 03, 2014 | 2005 Mercedes-Benz Mercedes Benz E320 Cdi

1 Answer

My mercedez benz sprinter does have power like it used to, the dashboard keeps displaying an EGR light.

replace egr valve with new one, check the switch or vacuum lines to it for leaks or bad connections.

Dec 13, 2013 | Mercedes-Benz Sprinter Cars & Trucks

2 Answers

2004 Mercedes-Benz C230 kompressor warning gauge Battery / Alternator needs to be service.

check your volt gauge on the dash. if it's working properly, then your car is throwing a bad code. if the battery looks as though it's taking more than 14 volts, or less than 10, you have a problem.

Sep 17, 2013 | 2004 Mercedes-Benz C230 Kompressor

1 Answer

C200 CDI 2004 diesel Have fault no. P1408 diagnosed but dont know what it is

p1408 is==manufacture control auxiliary emission controls which means that it refers to egr system, it may be a loose wire or it needs taken off and cleaned or replaced. if taken off and cleaned make sure carbon is removed at engine where it moun ts. have a good day !! check for egr vacuum hose break etc.

Nov 01, 2010 | 2007 Mercedes-Benz C230 Sedan

1 Answer

Would like to know where#2&#5 OXYGEN SENSOR IS

the oxygen sensor is inline with the exhuast system. look down the pipe and it should be just under the hood abouta foot or so away from the cylinder head in the exhaust manifold. the egr valve should be inbetween the exhaust manifold with one rubber(usually orange) attatched to it. what seems to be wrong with these items?

Dec 31, 2009 | 1993 Mercedes-Benz Mercedes Benz 300 Class

1 Answer

97 C230 ODB2 P400 code, EGR System where should I start

Check your IAC Idle Air control valve. It is located on the top right back of the motor behind the air intake. You can also remove the EGR valve and check to see that the piston is not gummed up. If it is then replace that. Also look for simple cracks on the boots or hoses sometimes that will cause this to happen. If this helped please rate. Thank you

Feb 12, 2009 | 1996 Mercedes-Benz C-Class

Not finding what you are looking for?
2004 Mercedes-Benz C230 Kompressor Logo

Related Topics:

205 people viewed this question

Ask a Question

Usually answered in minutes!

Top Mercedes-Benz Experts

Colin Stickland
Colin Stickland

Level 3 Expert

22326 Answers


Level 3 Expert

79865 Answers

Joseph Prosser

Level 3 Expert

772 Answers

Are you a Mercedes-Benz Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides